Thomas Scott Duncan, MD

Primary specialty

Family Medicine PhysicianTaxonomy code 207Q00000X

License

MD09168 Issued in OR

Practice address

595 18TH St
Astoria, OR 97103

Phone

(503) 325-9131

Fax

(503) 325-8797

NPI assigned

Apr 18, 2006

Sex

Male

Sole proprietor

No

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 1

Addresses

Other identifiers 1

Medicare fee-for-service enrollment

Enrolled in OR

Eligible to order & refer

• Part B services: No
• Medical equipment: Yes
• Home health: No
• Power mobility devices: Yes
• Hospice: No

Green means eligible to order or refer.

Enrollment records 1

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Practitioners 3

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles.

• Donna Lee Hammar, FNP

  • Family Nurse Practitioner
  • Portland, OR
  • NPI 1427006576
  Medicare reassignment
• Robert D Law, MD

  • Family Medicine Physician
  • Reedsport, OR
  • NPI 1447282504
  Medicare reassignment
• Susan L Skinner, CNM CFNP

  • Nurse Practitioner
  • Astoria, OR
  • NPI 1093779928
  Medicare reassignment

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

• Thomas S. Duncan

  • General Practice Physician
  • Astoria, OR
  • NPI 1043554835
  NPD (past) Authorized official

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1145318400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1093770893",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "595 18TH ST",
            "city": "ASTORIA",
            "state": "OR",
            "postal_code": "97103",
            "telephone_number": "503-325-9131",
            "fax_number": "503-325-8797"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "595 18TH ST",
            "city": "ASTORIA",
            "state": "OR",
            "postal_code": "97103",
            "telephone_number": "503-325-9131",
            "fax_number": "503-325-8797"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "DUNCAN",
        "first_name": "THOMAS",
        "middle_name": "SCOTT",
        "name_prefix": "Mr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-04-18",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "OR",
            "license": "MD09168",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "048140",
            "state": "OR"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Ali Dowlatdad, M.D.
• Downtowncoffeeshoptaxi LLC
• Doya Doula Collaborative LLC
• Dr. Nicole Reynolds LLC
• Driftwood Cove Counseling
• Deborah Denise Dunlap, FNP
• Jacob Curt Durtschi, LCSW
• Lori Ann Dyer, MS, CCC-SLP
• Earth Source Medicine
• Kellie Wilson Edwards, MD

• Family Medicine Physician in Astoria, OR
• Providers in Astoria, OR by specialty
• Family Medicine Physician in Oregon

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.